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Technical Data Sheet
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111-4636740 PART 12 — PLUG,PROTECTIVE,DUST AND MOISTUR

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

111-4636740 PART 12: PLUG,PROTECTIVE,DUST AND MOISTUR.

PLUG,PROTECTIVE,DUST AND MOISTUR. This part is cataloged in the U.S. Government catalog under NSN 5340-01-488-6792, indicating validated use in U.S.

government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels. Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
111-4636740 PART 12
NSN: 5340-01-488-6792
FSC: 5340 — Hardware, Commercial
CAGE: 43689 — HUNTINGTON INGALLS INC DIV NEWPORT NEWS SHIPBUILDING (USA)
SPECIFICATIONS
special_featuresMATL IS PLYESTER AND GLASS LAMINATED; 1 HOLE 2.125 INCH DIAMETER 5 .500 INCH FROM FOLE CENTER TO CENTER OF CAP; USED ON ELECTRICAL CONTROL FAIRING COVER IN
NSN5340-01-488-6792
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 111-4636740 PART 12 MFR: OEM ⚠ VERIFY BEFORE ORDERING Wrong material = failure. Viton for oil/fuel, EPDM for water/steam, Buna-N for general purpose, Silicone for food-grade. Chemical incompatibility causes swelling, brittleness, or rapid degradation ✓ BROKER TIP Durometer (hardness) affects sealing pressure tolerance. Higher Shore A = harder = higher pressure. Standard durometer is 70A — verify if application requires different hardness PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
TECHNICAL CHARACTERISTICS
SPECIAL FEATURESMATL IS PLYESTER AND GLASS LAMINATED; 1 HOLE 2.125 INCH DIAMETER 5 .500 INCH FROM FOLE CENTER TO CENTER OF CAP; USED ON ELECTRICAL CONTROL FAIRING COVER IN
SUBSTITUTES & CROSS-REFERENCES 1
111-4636740Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 111-4636740 PART 12?
111-4636740 PART 12 is a PLUG,PROTECTIVE,DUST AND MOISTUR.
What parts can replace 111-4636740 PART 12?
There is 1 known substitute for 111-4636740 PART 12: 111-4636740. Substitute compatibility should be verified for your specific system.
What is the NSN for 111-4636740 PART 12?
111-4636740 PART 12 is cataloged in the U.S. Government catalog under NSN 5340-01-488-6792. This indicates validated use in U.S. government and defense supply chains.
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